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Advisor(s)
Abstract(s)
O objetivo deste trabalho foi quantificar o teor de carbono orgânico presente no solo em florestas de Quercus e sua variação em profundidade na região nordeste de Portugal. O estudo foi realizado em bosques de Quercus (Quercus suber L., Quercus rotundifolia Lam. e Quercus pyrenaica Willd.) no NE de Portugal, no qual foram analisados os teores de matéria orgânica (MO) do solo nos primeiros 25 cm de profunidade, e estimada a concentração de carbono orgânico do solo. Aferiram-se as propriedades do solo no âmbito do carbono orgânico do solo em diferentes locais e profundidades. Os resultados evidenciaram um padrão distinto entre os tipos de bosques. A dinâmica de armazenamento altera-se com a profundidade, apresentando na camada inicial (0-5cm) maior concentração, independentemente da espécie ou local. Os povoamentos Quercus pyrenaica L. apresentam maiores concentrações de carbono orgânico com 55,60 g kg-¹, seguido do Quercus rotundifolia Lam. com 34,02 g kg-¹ e Quercus suber Willd. 27,72 g kg-¹. A presença de biomassa no sub-bosque favorece o acúmulo e manutenção da matéria orgânica e do carbono no solo.
The objective of this work was to quantify the organic carbon content present in the soil in Quercus forests and their variation in depth in the northeast region of Portugal. The study was carried out in Quercus forests (Quercus suber L., Quercus rotundifolia Lam. and Quercus pyrenaica Willd.) in NE Portugal, in which soil organic matter (OM) contents were analyzed in the first 25 cm of depth, and estimated soil organic carbon concentration. Soil properties were measured in terms of soil organic carbon in different locations and depths. The results showed a distinct pattern between the types of forests. Storage dynamics change with depth, with the initial layer (0-5cm) having the highest concentration, regardless of the species or location. The Quercus pyrenaica Willd. stands have the highest concentrations of organic carbon with 55,60 g kg- ¹, followed by Quercus rotundifolia Lam. with 34,02 g kg -¹ and Quercus suber L. 27,72 g kg - ¹. The presence of biomass in the understory favors the accumulation and maintenance of organic matter and carbon in the soil.
The objective of this work was to quantify the organic carbon content present in the soil in Quercus forests and their variation in depth in the northeast region of Portugal. The study was carried out in Quercus forests (Quercus suber L., Quercus rotundifolia Lam. and Quercus pyrenaica Willd.) in NE Portugal, in which soil organic matter (OM) contents were analyzed in the first 25 cm of depth, and estimated soil organic carbon concentration. Soil properties were measured in terms of soil organic carbon in different locations and depths. The results showed a distinct pattern between the types of forests. Storage dynamics change with depth, with the initial layer (0-5cm) having the highest concentration, regardless of the species or location. The Quercus pyrenaica Willd. stands have the highest concentrations of organic carbon with 55,60 g kg- ¹, followed by Quercus rotundifolia Lam. with 34,02 g kg -¹ and Quercus suber L. 27,72 g kg - ¹. The presence of biomass in the understory favors the accumulation and maintenance of organic matter and carbon in the soil.
Description
Keywords
Matéria orgânica Quercus spp. Carbono do solo
Citation
Souza, Júlio Henrique Germano de; Podsclan, Caroline; Castro, Marina (2024). Quantificação do carbono do solo em diferentes povoamentos de carvalho no nordeste de Portugal. Revista de Ciências Agrárias. ISSN 0871-018X. 46; 1 esp. p. 202-207
Publisher
Sociedade de Ciências Agrárias de Portugal